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The SDP-4510 Premium Performance Filter Cartridge is the alternative compatible to the Aqua-Pure AP817 and also replaces the discontinued AP815 Filter Cartridge. The SDP-4510 Premium Carbon Cartridge provides a better flow rate, more contact time, and different construction than the discontinued AP815, but can be used in all the same housings. The SDP-4510 (AP-817 compatible) reduces sediment and chlorine taste & odor from your water.
The SDP-4510 should be changed every 6 months based on water quality and usage.
